Rim for pneumatic tires.



B. BRADFORD, RIM FOR PNEUMATIC TIRES.

APPLIUATION F'ILBD MAB.. 29. 1910.

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RIM POR PNEUMATIG TIRES.

APPLICATION FILED MAB.. 29. 1910. 1,0901 14.

Patented Mar. 10, 1914.

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BENAIAH BRADFORD, OF IMORRISTOWN, PENNSYLVANIA, ASSIGNOR T LEE TIRE t RUBBER CO., 0F CONSHOHOCKEN, PENNSYLVANIA, A CORPORATION 0F PENN sYLvnNIA.

RIM FOR PNEUMATIC TIRES.

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specification of Letters Patent.

Application tiled March 29, 1910. Serial No, 552,192.

Patented M ar. 14), 1914.

which are adapted to be connected to the tire beforesaid rim is placed on the body of the wheel.

An lobject of the invention is to provide a rim which is divided into segmental sections, which sections are movably secured together in any desired manner, and to also provide a limitin with said sectiona rim and holds the same in proper relation to the tire before the rim is placed on the body of the wheel, and which further coperates with said sectional rim in holding the same on the rim proper or telly of the wheel.

The invention consists in the parts and arran ements hereinafter described and set forth 1n the appending claims.

-In the drawings, Fi re I, is a side view of a pneumatic tire, aving my improved rim attached thereto, showing in dotted lines the segments of the rim moved to position for detaching the rim from the tire. Fig. II, is a sectional view on the line II, II, of Fig. I. Fi .`III, is a sectional view through the rim an limiting ring, taken in the plane of the wheel.

My invention, as herein shown, resides in a rim 1, and a limiting ring 2. The rim 1, as shown in Figs. I, and I, consists of Y a segmental section 3, and a segmental sectio'n 4, which is, as herein shown, hinged at 5, to the section 3; It will be obvious however, that the sections may be connected in any desired manner. Said rim also comprises a section 6, which is similarly connected at 7, to the section 3. The outer end of the section -6, is preferably chamfered as at 8, and is adapted to engage the correspondingly chamfered end o the sec-V tion 4'. The rim 2, as shown in Fig. II, is

formed with integral flanges 9,lwliich are `adapted to receive the clenching flanges of the tire 10, .for locking the tire to the rim. The tire, as herein shown, is the usual form,

ring which cooperates having the inner tube 1l, and un outer shoe 12.

Coperating with the sectional rim 1, is a ring 2, which is preferably a single integral Structure. Said ring is also preferably of y substantially the saine width :is the distance between the edges of the flanges, onlv sufli cient space being left to allow the ring to slip readily between the flanges of the rim. and seat against the inner face ot said rim.y Said ring may, if desired, be secured to the segment B, of the sectional rim by suitable rivets 14, although it will be understood that from certain aspects of the invention, the .ring may be entirely separate from the sectional rim. The sectional rim may also be provided with a plurality of apertures 15, which are adapted to receive projecting lugs or dowels 16, secured to the ring. Said lugs engao'e the apertures in the rim and prevent all possible creeping of the ring relative to the rim.

In the operation of my device, the segments o f the sectional rim are moved to the position shown by dotted lines in Fig. I, the inner tire either collapsed or partly collapsed, so that the flanges of the outer shoe may be readily inserted between the flanges of the section 3. of the rim. The ringr 2, is first placed Within the rim, so as to be located between the rim and the tire. The section 6, is then swung into the position shown in full lines in Fi I, and the flanges of the shoe can be rea( ily inserted between the flanges of this section of the rim. The segment 4, is then moved to the position shown in -full lilies in Fig. I. and similarly connected to this section of the rim. When the parts are thus positioned, the inner tube is infiated. The ring 2 rests against the inner face of the outer shoe 12. When the inner tube is inflated, the expansion of the tube in the lane of thewheel and toward the center of t e wheel will be prevented by said rin and, as a consequence, said inner tube wi l expand to a greater extent laterally or transversely to the plane of the wheel. This lateral expansion of the inner tube causes an outward movement ofthe flanges on the tire. This outward movement of the flanges on the tire will be necessarilynpward-as well as outward, and, therefore, said flanges on the -tire will be carried into the flanges 9--9 on Q will, however, limit this outward movement of the sectional rim, and then continued force of the inflated tire will, therefore, lock the outer shoe, the sectional rim, andthe ring firmly together, thus holding the sectional rim on the inliated tire.

'When it is desired to replace the tire on Wheel, the rim of the wheel is removed, and my sectional rim, together with the inflated tire, slipped on to the body of the Wheel, and the usual Wedges or 'clamping screws or other securing means operated to secure said rim to the body of the Wheel. The outward pressure of the st Athe limiting ring, and the tire is firmly secured to the body` of the g thus described my invention, l

ie combination of an outer shoe having 3es, an inner pneumatic tube, a seetion .tim for said shoe, said rim having 1ntegra fnlanges adapted to engage the flanges on tire, a ringattached to one ofk said rim sections and extending from one end thereof to the other end of said rim section, the other rim sections being free of `said ring, and having adjacent ends chamfered, said being adapted to engage the inner faces of the flanges on the tire and limit the securing means against the i see Lal rim will force said sectional rim inward movement of the inner tube when inl flated, 'whereby the inflation of said inner l tube Will cause the flanges on the tire-'to move outward into engagement 'with' the flanges on said segmental rim, said ring also limiting the outward movement of the rim sections caused by the inflating of said tube.

2. The combination of an outer shoe hav` ing flanges, an inner pneumatic tube, a sectional rim for the shoe, said rim having flanges adapted to engage the flanges on the tire, an integral ring encircling the rimand located between the flanges on the rim, said ring being attached to one of said rim secf4 tions, the other rim sections being hinged Ato the respective ends of the rim section `to which the ring is attached and having their.v

adjacent ends chamfered, said ring being adapted to engage the inner faces ofthe flange on the tire and limit the inward movement of the inner tube when inflated Where-y by the inflation vof said inner tubegwill,

cause the tianges on the tire to move outward into engagement with the flanges on the segf;

mental rim, said ring also limiting the outward movement of the rim sections caused by the inliation of said tube. ln testimony whereof, l signed my name at Philadelphia, Pennsyl-y vania, this 28th day of March, 19,10.

BENMAH BRADFORD.

l/Vitnesses:

JAMES H. BELL, E. L. FULLERTON.

have hereunto` 

